linux-kernel - linux-next: build warning after merge of Linus' tree

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Date:   Mon, 29 Jul 2019 14:04:04 +1000
From:   Stephen Rothwell <sfr@...b.auug.org.au>
To:     Johannes Berg <johannes@...solutions.net>,
        Takashi Iwai <tiwai@...e.de>
Cc:     Linux Next Mailing List <linux-next@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: linux-next: build warning after merge of Linus' tree

Hi all,

After merging the origin tree, today's linux-next build (powerpc
allyesconfig) produced this warning:

sound/aoa/codecs/onyx.c: In function 'onyx_snd_single_bit_get':
sound/aoa/codecs/onyx.c:377:37: warning: 'c' may be used uninitialized in this function [-Wmaybe-uninitialized]
  ucontrol->value.integer.value[0] = !!(c & mask) ^ polarity;
                                     ^~~~~~~~~~~~

Introduced by commit

  f3d9478b2ce4 ("[ALSA] snd-aoa: add snd-aoa")

This warning has been around for a long time.  It could possibly be
suppressed by checking for errors returned by onyx_read_register().

-- 
Cheers,
Stephen Rothwell

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